Patent US3754845A successfully refreshed from Google Patents.
US3754845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for splicing jacketed cable
Assignee: Carolina Steel and Wire Corp
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Filing: 1972-06-30
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Granted: 1973-08-28
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Expires: 1992-06-30
Abstract
Abstract A method of splicing cable encased in a plastic jacket is disclosed in which the jacket is removed for a given distance inwardly from the ends of the cable to be spliced, the strands are cut and interleaved to provide a mechanical splice portion which is then inserted in a mold and heated to a high temperature, liquid plastic at a high temperature is then injected in the mold to flow into the intestices of the splice and the space surrounding the splice and the mold is then cooled to provide a completely jacketed splice; another aspect of the invention resides in the mold construction in which an inlet is provided centrally of an elongated hollow cylindrical mold with outlets being provided adjacent each end of the mold adjacent the ends of the cable splice so that hot plastic injected into the mold flows outwardly to expel all air in the mold and to consequently provide a more uniform jacket over the splice.
Inventors
- 👤 D Rauscher
- 👤 R Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:00
CPC Classifications
B; B65; B65H; B65H69/00; B65H69/06; D; D07; D07B; D07B7/00; D07B7/02; D07B7/14; D07B7/145; D07B7/16; D07B7/169; D07B7/165; Y; Y10; Y10S; Y10S425/00; Y10S425/812
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
126 words
Molding apparatus for applying a jacket into a cable portion comprising an elongated hollow mold member, a cylindrical cavity in said hollow mold member for receiving said cable portion, means for positioning said cable portion to extend substantially axially along the length of said cylindrical cavity, said cylindrical cavity being of a diameter substantially equal to the diameter of the jacket to be applied to the cable portion, heating means for heating said mold member, inlet means communicating with said cylindrical cavity, means for injecting hot liquid plastic into said inlet means and said cylindrical cavity at a pressure sufficient to cause said hot liquid plastic to flow into the interstices of the cable portion and bleed apertures communicating with said cavity for venting said cavity.
Claim 2
Dependent Claim
126 words
Molding apparatus for applying a jacket into a cable portion comprising an elongated hollow mold member, a cylindrical cavity in said hollow mold member for receiving said cable portion, means for positioning said cable portion to extend substantially axially along the length of said cylindrical cavity, said cylindrical cavity being of a diameter substantially equal to the diameter of the jacket to be applied to the cable portion, heating means for heating said mold member, inlet means communicating with said cylindrical cavity, means for injecting hot liquid plastic into said inlet means and said cylindrical cavity at a pressure sufficient to cause said hot liquid plastic to flow into the interstices of the cable portion and bleed apertures communicating with said cavity for venting said cavity.
Claim 3
Dependent Claim
50 words
The invention of claim 1 wherein said hollow mold member is formed of a base block having a top block pivotally connected to said base block with half of said cylindrical cavity formed in the base block and the other half of said cylindrical cavity formed in the top block.
Claim 4
Dependent Claim
18 words
The invention of claim 2 wherein said base block and said top block each includes electrical heating elements.
Claim 5
Dependent Claim
14 words
The invention of claim 3 wherein said base block includes liquid receiving cooling conduits.
Claim 6
Dependent Claim
39 words
The invention of claim 1 wherein said means for injecting hot liquid plastic into said inlet means and said cylindrical cavity comprises extrUsion pump means and wherein said bleed apertures are provided adjacent each end of said cylindrical cavity.
Claim 7
Dependent Claim
30 words
The invention of claim 5 wherein said means for positioning said cable portion includes means for holding said cable portion in tensioned condition along the length of said cylindrical cavity.
Claim 8
Dependent Claim
50 words
The invention of claim 6 wherein said hollow mold member is formed of a base block having a top block pivotally connected to said base block with half of said cylindrical cavity formed in the base block and the other half of said cylindrical cavity formed in the top block.
Claim 9
Dependent Claim
21 words
The invention of claim 7 wherein said heating means includes electrical heating elements in said base block and said top block.
Claim 10
Dependent Claim
15 words
The invention of claim 8 wherein said base block also includes liquid receiving cooling conduits.
Claim 11
Dependent Claim
30 words
The invention of claim 1 wherein said means for positioning said cable portion includes means for holding said cable portion in tensioned condition along the length of said cylindrical cavity.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |